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The CTV-PTV margin calculated based on the measured systematic and random errors.
| Direction | Corrected | Not corrected | ||||||
|---|---|---|---|---|---|---|---|---|
| Tolerance cohort | Tolerance cohort | |||||||
| 5 mm | 4 mm | 3 mm | All | 5 mm | 4 mm | 3 mm | All | |
| LR | 2 | 2.2 | 1.9 | 2 | 2.3 | 3.2 | 2.4 | 3.1 |
| AP | 1.9 | 2.5 | 1.9 | 2.1 | 2.9 | 3.5 | 5.1 | 4 |
| SI | 2.5 | 1.4 | 2 | 2.1 | 4.1 | 2.3 | 3.7 | 3 |
